Improvement in spinning-jacks



OLIvER BROTHERS, OE NAUGATUCK, CONNECTICUT, ASSICNOR TO j 'HIMSELEAND JOSEPH WHITE, v,or SAME PLACE.

IMPROVEMENT IN SPINNlNGftl'ACKS.

Specification forming part of 'Letters PatentNo. 87,138, dated February v23, 1869. l

To all whom rImag concern:

Be it known that I, OLIVER BROTHERS, of

4Naugatuck, in the county of New Haven and State of Connecticut, have invented a new and Improved Automatic Bobbin-,Builder for Spinning-Jacks; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others Skilled in the art to make and use the same, reference being had to the accompanying drawings, forming a part of'this specification.

Figure Al, Sheet I, represents a side elevation of my improved bobbin-builder. Fig; 2, Sheet I, is a vertical longitudinal Ysection of the same, taken on the plane of the line w zo,

Fig. l. Fig. 3, Sheet II, is a plan or top view being to do 'away with the necessity of imparting oscillating motion by hand to the faller or thread guide. l

The invention consists in such an arrangement of all parts that a bobbin of suitable size can be built of suitable shape altogether automatically.

A in the drawing represents a slotted horizontal plate, which is provided with projecting arms t a, that are Secured to the reciprocating carriage of awool-spinuing jack. From the plate A-projects upward an ear or post, b, which forms a bearing for a horizontal Screwshaft, B. On the outer end of this shaft is mounted a ratchet-wheel, C, to the center of whizh a lever, D, carrying a pawl, c, is pivotec.

E represents a rod, which is held in vbearings d d, that are attached to the carriage or to the plate A, and which can freely Slide in its bearings. It is, as in Figl, pivoted at one end to the lever D, while its other end projects forward toward the stationary'bobbinframe. Whenever the carriage moves forward lthe frontend of the rod E will abut against a plate or knob, e, formed on the ystationary frame, and will be pushed back, so as to cause the lever D to swing. The pawl will thereby be carried forward, so as to cause the wheel() to turn, and to also turn the shaft B.

When the carriage'moves back, a spring, f, or its equivalent, carriesthe rod E forward again into the original position, and thereby the pawl is brought back on the wheel O, so as to fall into another tooth, ready to turnthe Wheel a when the rod is pushed back again.

Intermittent rotary motion. is thus imparted to the shaft B by the reciprocating motion of thefearriage. 1 f

' On the shaft B- is formed a screw-thread, as in Fig. 2.

The screw B is tted through a truck or frame, F, which rests on the plate A, between or upon two anges or rails, g g, that project from the plate, as shown. When the screw is turned by the aforesaid action of theI pawl and ratchetwheel, it serves to draw the truck F toward the ratchetfwheel.

Gr represents a vertical shaft. Thesame ts loosely through a block, h, on which V-Shaped lugs or projections i i are formed, pointing downward, as shown in Fig. 2. These lugs rest with their points upon the upper edges of the frame F, and serve to suspend the shaft G from the said truck or frame F, the shaft having a shoulder, by means of which it is' suspended from the block h. The lower end or part of the shaft G iits through an arm, j, lthat is secured to the carriage and adjustable vertically. The shaft is thereby prevented from lateral motion, but it is allowed to move up and down with the arm j.

The shaft G receives, by suitable connection with the shaft H, rotary motion. l

Those edges of the truck F upon which the points i rest are partly horizontal and partly inclined, as shown-that is, that portion which is nearest to the ratchet-wheel is highest, and lis horizontal, and' that portion which is away from the ratchet-wheel is slanting downward from the horizontal part, as shown.

As the truck is, by the motion of the screw,`

drawn toward the ratchet-Wheel,it movesfrom under the lugs i, the shaft always remaining suspended from lthe truck.

lily up.

'As long as the lugs t' rest on the horizontal portion of the edge the shaft will always re- L main at an-equal height; but asv the inclined `portion of the edge arrives under the lugs,`as

arm j, as in Fig. 1, and is provided with a projecting step, m, which rests upon the upper face of the cam I, as shown in Fig. 1. The step is adjustable vertically on the bar J for purposes hereinafter to be specified.

The slot in the lower arm l is longer than the width 'of the bar J, so that the bar may swing somewhat in its holders. To one side ofthe bar J is secured a spring, L, from one side of which two V-shaped lugs, n n, project l through a slot in thebar J, as shown in Figs.

1 and 4.

From the upper end of the spring L projects an arm, o, in a horizontal direction, as

shown in Figs. 1 and'3. From the upper end of the shaft 'G projects an arm, p,`in a horizontal direction, as shown in the same figures. `When the shaft is, during the forward motion of the carriage, turned in the direction of the arrow 1, Figs. 3 and 5, its arm p will, 'at every revolution, strike against the `arm o, so as to `bend the upper end of the vspring L away from the bar J, and to therebyV draw the lugs n n from the slot of the bar J,

as shown in Fig.\4, in which gure the spring is represented as being pressed back.

M is a crank or lever projecting from the shaft N, with'which, by means 'of arms r r,

the faller or thread-guide O is connected, asindicated in Figs. l and 3. The rear end ofthe lever M is, when the spring L is in its undisturbed position, held between the lugs n n, and thereby, as the barJ is moving up and down, the lever is made to swing and' cause the shaft Nto oscillate and the wire 0 to be lowered or raised. When the lugs n n areby the action of the arm p, withdrawn, as in Fig. 4, the leveriwill be released, and its rear end `"will fall down, so as to cause the guide O to From the sliding truck F projects an arm, which carries a slotted plate, P. Through the slot in this plate Pis fitted the bar J, and as the `truck moves on the plate A the slotted arm `will be carried-along with it, causing the bar J to follow the shape of the slot. For this purpose the aforesaid swinging play is allowed the bar. f The operation of the apparatus'` is as follows: The bobbins'R R are set upon rthe sta- Y tionarypart of the spinning-jack, and the rollers under the guide O and above the stripper S. The position of the guide O controls the yarn at the required height on the bobbin. At the start-that is, when an empty bobbin is to be lled--the shaft Gis suspended from the uppermost horizontal edge of the truck, whereby, as the cam I is firmly keyed to the shaft, and as the bar J also rests on the cam, the said bar and its appendage are elevated, holding the lugs n 'n up high. The rear end of the lever M will thereby also be raised, and will hold the guide O down, so that thus, at the start, the thread is guided to the lower part of the bobbin, each backward and forward movement of the carriage will cause the truck to be drawn nearer to the ratchet-wheel, and the shaft will consequently be lowered the more the inclined portion of the truck recedes from under the lug z'. `The more it is lowered the higher will the guide O beheld, and the higher will the thread be wound around the bobbin. Thus, by theinclined upper face of the truck F, the yarn is guided gradually from the lower to the upper end of the bobbin.

The shaft G makes almost a full revolution during each oscillation of the lever M. turned in the direction of the arrow 1 when the carriage moves forward, and in the opposite direction when it moves backward. At the start of the forward motion the step m rests upon the lowermost portion s of the cam, asin Fig. l. The bar J is therefore down as low as it can be during the revolution, and theguide O is consequently as high as it can be durin g the same motion. As the cam is now turned the step lm. will pretty suddenly be raised to the highest point t of its edge, which is only about ninety degrees distant from the lowest points. The threadis thereby brought quickly from the uppermost to the lowermost portion of the bobbin that can be reached during the one revolution. Now the edge of the cam very gradually descends from t to s again, and al lows the thread to be built up around the bobbin from below.

It will be understood that the thread is guided by the rod O, which has its position regulated by the lever M. ,The latter is held between the lugs n n, and is turned with its pivot N by the up-and-down motion, the same being notonly caused by the gradual descent of the shaft Gr on the truck J, but also during each turn of the shaft during the forward motion of the carriage by the shape of the cam I. When `the carriage is quite forward the lever Mis, as 4heretofore set forth, freed from the lugs u, and the guide O iiies up, leaving the thread free to be twisted during the backward motion of the carriage.

The cam is slightly conical-i. e., it is higher inthe center than at some portions of the edgeas shown. The step m would thereby at times rest'higher if itwere brought nearer to the centerpof the cam than it would be when resting upon the outermost portion of the same.` The slotthrough the plate P is straight, except at the ends, Where it is inclined toward the plate `A, as shown in Fig. 3. The bar J will therefore, when it is in one of the ends of the slot, be nearer to the shaft G, and therefore higher, as its step m rests nearer to G on the cam, than itis when it is in the straight part ofthe slot. Thus, at the start, the bar J is, in the end w of the slot, higher on the cam. The motion of the bar caused by the cam will be less now than afterward, when the step rests on the outer part of the cam, the distance between the lowermost part s and the highest part t of the cam being inthe former case less than in the latter. Consequently the taper formed on the bobbin will be less when the bar J is thus nearer to G. At the start, therefore, this taper is short, but is gradually lengthened until the bar J is in the straight part of the slot; then it remains uniform. Near the top of the bobbin the taper is again shortened as the bar J gets into the end X of the slot. In this manner the bobbin can be quite automatically built up, without requiring the tiresome and unreliable personal attendance to the guide O. The step mis adjustable on the bar J for the purpose of adapting the device to longer or shorter bobbins.

I claim as new and desire to secure by Letters Patentl. 'Ihe cam I on the shaft G, in combination with the adjustable step m, bar J, and slotted plate P, substantiallyT as described, for the purpose specied.

2. The rotating shaft G suspended from a movable carriage or truck, F, with a partlyinclined bearing edge or face, substantially as herein shown and described.

3. The block h, having the lugs i, and surrounding the shaft G, when arranged, as described, for suspending the shaft from the truck F, as specified.

4. The combination of the truck F on the bed A, the screw B, ratchet-wheel C, pawl c, and lever D with the sliding shaft Gr, all arranged and operating as described, for the purpose specied.

5. The bar J, supported by the revolving cam I, and provided with a spring, L, on which the lugs n for holding the lever M are formed, substantially as herein shownand described.

6. The arms o andp, projecting, respectively, from the spring L and from the shaft G, for the purpose of releasing the yarn during the backward motion of the carriage, to give it proper twist, as set forth.

7. The step m, when arranged adjustably on the bar J, for the purpose substantially as set forth.

8. The slotted plate l? for guiding the bar J, and when secured to the sliding truck F, so as to regulate the tapervof the bobbin, as s et forth.

9. The lever M for operating the faller, in combination with the spring L,havin g the lugs n n, as and for the purpose specified.

10. An automatic bobbin-builder for spinning-machines, consisting of the bed-plate A, screw B, carriage F, shaft G, cam I, bar J, step m, spring L, and lever M, all combined with each other, and made and operating substantially as herein shown and described.

OLIVER BROTHERS.

Witnesses W. H. NEELY, A. M. FAY. 

